Fountain pen



D. WOLF FOUNTAIN PEN Dec. 13, 1966 Filed May 16, 1966 1mm/rae. f INV/DULF Il nu United States Patent O 3,291,102 FOUNTAIN PEN David Wolf,Newton, Mass. (185 Devonshire St., Boston, Mass.) Filed May 16, 1966,Ser. No. 531,113 3 Claims. (Cl. 1Z0- 46) The present invention relatesto an improved fountain en. p Certain styles of fountain pens arerefilled by dipping the nib into a container of ink to fill an ink sackor reservoir and thereafter withdrawing the pen from the ink. It is thennecessary to wipe dry the casing about the nib. This last step isinconvenient, time consuming and messy. It often results in lingersbecoming stained with ink.

The present invention is designed to overcome these and other objectionsto fountain pens of the type described.

In the pres-ent invention, the internal components of the pen, exceptfor the tip of the nib, are encased in a two part casing. The upper andpreferably shorter part is integrally secured to the internal componentsof the pen. The lower and preferably longer part forming a hoodremovably encases the lower internal components of the pen. The bottomof the lower part of the casing has an opening through which the nibprojects. These two casing parts are threadably interengaged at adjacentends. To till the pen of the present invention, the lower part or hoodof the casing is removed, exposing the er1- tire nib and reservoirportions of the pen. Also preferably exposed is the means for fillingthe pen reservoir. The pen nib is then immersed in the ink well and thereservoir filled. The nib is withdrawn and the lower casing replacedwithout wiping the nib or the area about it. Since the lower part of thecasing covers all but the tip of the nib including that portion of thereservoir which may have been wetted by ink, and since this lower partof the casing is dry on its exterior surface, there is no need to wipethe pen.

These and other objects of the present invention will be more clearlyunderstood when considered in connection with the accompanying drawingsin which:

FIG. il is an elevational view of a pen embodying my invention; p

FIG. 2 is a longitudinal cross-sectional view;

FIG. 3 is an elevational view of a portion of the invention; and

FIGS. 4 and 5 are fragmentary cross-sectional views of modifications ofthe invention.

A preferred form of the present invention is illustrated in the drawingsin which the outer pen casing is formed of an upper part 1 and a lowerpart 2, having a hood like appearance, with the lower part preferablysubstantially longer than the upper part. These parts 1 and 2 containthe internal components of the pen and cooperate to form a complete pencasing (except for the cap, not illustrated) The upper part 1 is formedwith a cavity 3 extending upwardly from its lower end 4. The lower end 4is formed with a shoulder 5 having a threaded outer surface 6.

The lower part 2 is formed as a hollow Shell open at either end. Theupper end 7 is internally threaded as illustrated at 8. The threads 8 ofthe lower part and the threaded outer surface 6 of the upper part arecomplementary and are removably interengaged to form a continuous casinghaving continuous outer walls. If desired a decorative ring 9 may beinterposed between the parts 1 and 2.

The lower part 2 may be nonsymmetrical with an enlarged sectionintermediate its ends as illustrated at 11 for `decorative purposes orfor easier gripping, provided 3,291,102 Patented Dec. 13, 1966 ICC thehollow interior through the Ilower part is of suicient diameter toaccommodate the internal components.

The internal components may be conventional in nature and may include anink reservoir 13 having a rigid base 12. The base 12 is an elongatedshell having a maximum outer diameter sufficient to permit it to bedrawn out through the upper end of the lower part 2. The upper end ofthe base 12 is open .and is formed with a shoulder 24 to which issecured the lower end of the resilient ink sack 15. The lower end of thebase 12 is formed with an ink passage 16 connected to the interior 17 ofthe base 12. A recess or slot 18 is formed adjacent the passage 16 andis designed to receive and secure the upper end of the nib 19.

The nib 19 which is secured to the base 12 projects downwardly with itslower end or tip projecting outwardly through the lower opening 20 inthe lower part 2.

The ink sack 15 projects upwardly through the lower part 2 and into thecavity 3.

A cylindrical sleeve 21 preferably of rnetal is force ft over the inksack 15 and shoulder 24 to securely interengagethe sleeve and shoulder24. An elongated leaf spring 25 is also secured to the shoulder 24 bysleeve 21. This spring 25 is formed las an inverted U-shaped memberwhich extends over the upper end of sack 15. The bight portion 27 ofspring 25 extends into the cavity 3 and is secured therein by suitablemeans. These means may comprise a dimple or bead 50 formed in the springon either side thereof and projecting into a recess 51 in the innersurface of upper part 1. This arrangement secures the spring againstaxial movement relative to the upper part, but allows the upper part tobe rotated so as to engage or disengage the threaded surface 6 fromthreads 8. Alternate securing means which hold the internal componentsto the upper part While still allowing the removal of these componentsfrom the lower part may be used. Such an arrangement may comprise thestructure illustrated in FIG. 4. In this arrangement the upper part 1instead of being threaded at 6 is provided with an axially engagingbayonet t capable of engaging lower part 2 so that parts 1 and 2 can beengaged on axial movement. The bight 27 of spring 25 is secured to thetop of part 1 by a rivet 60. FIG. 5 is a simi-lar arrangement to FIG. 2except that a plurality of inwardly extending pins 61 anchored at theirouter ends in part 1 project into lateral grooves 62 in spring 25. Atleast three radially arranged pins are provided so that a pin alwaysengages the grooves 62 on rotation of part 1 relative to spring 25. Thiseffectively integrally secures the internal components to the upper partof the casing. The lower part of the casing which forms a hood coveringthe internal components is removably interengaged with the yupper partso that it may readily beV detached from the internal components toexposed them for filling.

As used herein the term integrally secured when referring to theattachment of the upper part to the internal components is intended torefer to an interengagement or unity which will normally remain intactduring use or filling of the pen, even though means may be provided fordetachment for repair or other similar purposes.

If desired a bayonet type of closure between the upper and lower parts 1and 2 are possible. This will avoid use of threads 6 and 8 andconsequent rotation of upper part 1 relative to lower part 2.

While but a single embodiment has been illust-rated the presentinvention is to be construed as limited by the claims only. Othermodifications within the skill of the artisan are contemplated andincluded, for example, a pen having piston-like means for filling arelatively rigid reservoir wherein the upper part is secured to thepiston shaft and is adapted to be moved up and down with the pistonafter disengagement with and removal of the lower part.

What is claimed is:

1. A fountain pen comprising means forming a rellable ink reservoir, apen nib, means forming an ink conduit yand support for securing said nibat one end of said reservoir whereby ink may ow from said reservoir tosaid nib when said pen is in use, spring means extending from saidsupport for lling said reservoir from an ink supply into which said nibis dipped, and a casing enclosing each of said means and substantiallyenclosing said nib, said casing including an upper part rotatablysecured to said spring means and a lower part open at each end andenclosing the lower portions of said pen with the tip of said nibprojecting outwardly therefrom, said lower part formed with an innersurfacevdev-od of projections engaging said nib whereby said lower partmay be completely removed from enclosing said lower portions.

2. A fountain pen as set forth in claim 1 wherein said upper and lower'partsA have complementary interengaging threaded portions for removablysecuring said parts together.

3. A fountain pen as set forth in claim 1 wherein said upper part isrotatably secured to said one of said means against axial movement withrespect thereto.

IReferences Cited by the Examiner UNITED STATES PATENTS 1,808,377 6/1931Reichenbach 120-46 2,519,635 8/1950 Claret 120-52 3,063,420 11/1962 Teft1Z0-42.03 3,071,113 1/ 1963 Winchell 1Z0-42.03

EUGENE R. CAPOZIO, Primary Examiner.

H. F. ROSS, Assistant Examiner.

1. A FOUNTAIN PEN CONSISTING MEANS FORMING A REFILLABLE INK RESERVOIR, APEN NIB, MEANS FORMING AN INK CONDUIT AND SUPPORT FOR SECURING SAID NIBAT ONE END OF SAID RESERVOIR WHEREBY INK MAY FLOW FROM SAID RESERVOIR TOSAID NIB WHEN SAID PEN IS IN USE, SPRING MEANS EXTENDING FROM SAIDSUPPORT FOR FILLING SAID RESERVOIR FROM AN INK SUPPLY INTO WHICH SAIDNIB IS DIPPED, AND A CASING ENCLOSING EACH OF SAID MEANS ANDSUBSTANTIALLY ENCLOSING SAID NIB, SAID CASING INCLUDING AN UPPER PARTROTATABLE SECURED TO SAID SPRING MEANS AND A LOWER PART OPEN AT EACH ENDAND ENCLOSING THE LOWER POERTIONS OF SAID PEN WITH THE TIP OF SAID NIBPROJECTING OUTWARDLY THEREFROM, SAID LOWER PART FORMED WITH AN INNERSURFACE DEVOID OF PROJECTIONS ENGAGING SAID NIB WHEREBY SAID LOWER PARTMAY BE COMPLETELY REMOVED FROM ENCLOSING SAID LOWER PORTIONS.